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To improve the performances of the parallel 6-axis force sensor with Stewart platform, the paper plots the indices atlases based on the screw theory and the theory of physical model of the solution space, and summaries the laws how the structure parameters affect the indices. Then, the sizable parallel 6-axis force sensor's structure parameters are(More)
Nowadays improving the accuracy and enlarging the measuring range of six-axis force sensors for wider applications in aircraft landing, rocket thrust, and spacecraft docking testing experiments has become an urgent objective. However, it is still difficult to achieve high accuracy and large measuring range with traditional parallel six-axis force sensors(More)
To investigate the stiffness performance of planar parallel 3-RRR mechanism with flexible joints, the paper solve the first-order and second-order influence coefficient of the mechanism, and give the mechanism kinematics simulation. Based on the principle of virtual work, the constraint equation of the mechanism is established, and the stiffness matrix is(More)
To further improve the precision of sizable Stewart platform-based force/torque sensor with general spherical joints in existing manufacture and calibration techniques, substituting spherical joints with three equivalent revolute joints, the paper presents the friction model of sizable parallel 6-axis force sensor with Stewart structure based on the screw(More)